<template>
    <div class="app-container">
  
      <!-- 工具条 -->
      <div class="tools-div">
        <el-button type="success" icon="el-icon-plus" size="mini" @click="add()">添 加</el-button>
      </div>
      <el-table
        :data="sysMenuList"
        style="width: 100%;margin-bottom: 20px;margin-top: 10px;"
        row-key="id"
        border
        :default-expand-all="false"
        :tree-props="{children: 'children'}">
  
        <el-table-column prop="name" label="菜单名称" width="160"/>
        <el-table-column label="图标">
          <template slot-scope="scope">
            <i :class="scope.row.icon"></i>
          </template>
        </el-table-column>
        <el-table-column prop="perms" label="权限标识" width="160"/>
        <el-table-column prop="path" label="路由地址" width="120"/>
        <el-table-column prop="component" label="组件路径" width="160"/>
        <el-table-column prop="sortValue" label="排序" width="60"/>
        <el-table-column label="状态" width="80">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.status === 1" disabled="true">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column prop="createTime" label="创建时间" width="160"/>
        <el-table-column label="操作" width="180" align="center" fixed="right">
          <template slot-scope="scope">
            <el-button type="success" v-if="scope.row.type !== 2" icon="el-icon-plus" size="mini" @click="add(scope.row)" title="添加下级节点"/>
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row)" title="修改"/>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeDataById(scope.row.id)" title="删除" :disabled="scope.row.children.length > 0"/>
          </template>
        </el-table-column>
      </el-table>
  
      <el-dialog :title="dialogTitle" :visible.sync="dialogVisible" width="40%" >
        <el-form ref="dataForm" :model="sysMenu" label-width="150px" size="small" style="padding-right: 40px;">
          <el-form-item label="上级部门" v-if="sysMenu.id === ''">
            <el-input v-model="sysMenu.parentName" disabled="true"/>
          </el-form-item>
          <el-form-item label="菜单类型" prop="type">
            <el-radio-group v-model="sysMenu.type" :disabled="typeDisabled">
              <el-radio :label="0" :disabled="type0Disabled">目录</el-radio>
              <el-radio :label="1" :disabled="type1Disabled">菜单</el-radio>
              <el-radio :label="2" :disabled="type2Disabled">按钮</el-radio>
            </el-radio-group>
          </el-form-item>
          <el-form-item label="菜单名称" prop="name">
            <el-input v-model="sysMenu.name"/>
          </el-form-item>
          <el-form-item label="图标" prop="icon" v-if="sysMenu.type !== 2">
            <el-select v-model="sysMenu.icon" clearable>
              <el-option v-for="item in iconList" :key="item.class" :label="item.class" :value="item.class">
              <span style="float: left;">
               <i :class="item.class"></i>  <!-- 如果动态显示图标，这里添加判断 -->
              </span>
                <span style="padding-left: 6px;">{{ item.class }}</span>
              </el-option>
            </el-select>
          </el-form-item>
          <el-form-item label="排序">
            <el-input-number v-model="sysMenu.sortValue" controls-position="right" :min="0" />
          </el-form-item>
          <el-form-item prop="path">
                <span slot="label">
                  <el-tooltip content="访问的路由地址，如：`sysUser`" placement="top">
                  <i class="el-icon-question"></i>
                  </el-tooltip>
                  路由地址
                </span>
            <el-input v-model="sysMenu.path" placeholder="请输入路由地址" />
          </el-form-item>
          <el-form-item prop="component" v-if="sysMenu.type !== 0">
                <span slot="label">
                  <el-tooltip content="访问的组件路径，如：`system/user/index`，默认在`views`目录下" placement="top">
                  <i class="el-icon-question"></i>
                  </el-tooltip>
                  组件路径
                </span>
            <el-input v-model="sysMenu.component" placeholder="请输入组件路径" />
          </el-form-item>
          <el-form-item v-if="sysMenu.type === 2">
            <el-input v-model="sysMenu.perms" placeholder="请输入权限标识" maxlength="100" />
            <span slot="label">
                  <el-tooltip content="控制器中定义的权限字符，如：@PreAuthorize(hasAuthority('bnt.sysRole.list'))" placement="top">
                  <i class="el-icon-question"></i>
                  </el-tooltip>
                  权限字符
                </span>
          </el-form-item>
          <el-form-item label="状态" prop="type">
            <el-radio-group v-model="sysMenu.status">
              <el-radio :label="1">正常</el-radio>
              <el-radio :label="0">停用</el-radio>
            </el-radio-group>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="dialogVisible = false" size="small" icon="el-icon-refresh-right">取 消</el-button>
          <el-button type="primary" icon="el-icon-check" @click="saveOrUpdate()" size="small">确 定</el-button>
        </span>
      </el-dialog>
    </div>
  </template>
  
  
  <script>
  import api from '@/api/sysMenu/menu.js'
  const defaultForm = {
    id: '',
    parentId: '',
    name: '',
    type: 0,
    path: '',
    component: '',
    perms: '',
    icon: '',
    sortValue: 1,
    status: 1
  }
  export default {
    // 定义数据
    data() {
      return {
        sysMenuList: [],
        expandKeys: [], // 需要自动展开的项
  
        typeDisabled: false,
        type0Disabled: false,
        type1Disabled: false,
        type2Disabled: false,
        dialogTitle: '',
  
        dialogVisible: false,
        sysMenu: defaultForm,
        saveBtnDisabled: false,
  
        iconList: [
          {
            class: "el-icon-s-tools",
          },
          {
            class: "el-icon-s-custom",
          },
          {
            class: "el-icon-setting",
          },
          {
            class: "el-icon-user-solid",
          },
          {
            class: "el-icon-s-help",
          },
          {
            class: "el-icon-phone",
          },
          {
            class: "el-icon-s-unfold",
          },
          {
            class: "el-icon-s-operation",
          },
          {
            class: "el-icon-more-outline",
          },
          {
            class: "el-icon-s-check",
          },
          {
            class: "el-icon-tickets",
          },
          {
            class: "el-icon-s-goods",
          },
          {
            class: "el-icon-document-remove",
          },
          {
            class: "el-icon-warning",
          },
          {
            class: "el-icon-warning-outline",
          },
          {
            class: "el-icon-question",
          },
          {
            class: "el-icon-info",
          }
        ]
      }
    },
  
    //当页面加载时获取数据
    created() {
      this.fetchData()
    },
  
    methods: {
      //调用api层获取数据库中的数据
      fetchData() {
        // if(this.$hasBP('bnt.sysUser.list')){
        //   return;
        // }
        //发送请求
        api.getMenuList().then(res => {
          console.log(res)
          this.sysMenuList = res.data;
        })
      },
  
      //根据id删除数据
      removeDataById(id) {
         // debugger
      this.$confirm('此操作将永久删除该节点, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => { // promise
        // 点击确定，远程调用ajax
         api.removeById(id).then(res=>{

            //刷新列表
            this.fetchData();
            //给出提示
            this.tips(res.code==200,'删除节点')
            
         })
     
      })

      },
  
      //弹出添加或更新的表单 并赋值
      add(row){
        
      this.typeDisabled = false
      this.dialogTitle = '添加下级节点'

       // 清空之前的旧数据！！
      this.sysMenu = Object.assign({}, defaultForm)
      this.sysMenu.id = ''
      if(row) {
        this.sysMenu.parentId = row.id
        this.sysMenu.parentName = row.name
        //this.sysMenu.component = 'ParentView'
        if(row.type === 0) {
          this.sysMenu.type = 1
          this.typeDisabled = false
          this.type0Disabled = false
          this.type1Disabled = false
          this.type2Disabled = true
        } else if(row.type === 1) {
          this.sysMenu.type = 2
          this.typeDisabled = true
        }
      } else {
        this.dialogTitle = '添加目录节点'
        this.sysMenu.type = 0
        this.sysMenu.component = 'Layout'
        this.sysMenu.parentId = 0
        this.typeDisabled = true
      }
           
        this.dialogVisible=true;
      },
  
      //编辑
      edit(row) {
        // debugger
      this.dialogTitle = '修改菜单'
      this.dialogVisible = true;

      this.sysMenu = Object.assign({}, row)
    // this.sysMenu = row;
      this.typeDisabled = true;
      },
      
      //添加或更新
      saveOrUpdate() {
        if(this.sysMenu.type === 0 && this.sysMenu.parentId !== 0) {
        this.sysMenu.component = 'ParentView'
      }
      this.$refs.dataForm.validate(valid => {
        if (valid) {
          this.saveBtnDisabled = true // 防止表单重复提交
          if (!this.sysMenu.id) {
            this.save()
          } else {
            this.update()
          }
        }
      })
      },
  
      //添加
      save() {
       api.addMenu(this.sysMenu).then(res=>{
        //给出提示
            this.tips(res.code==200,'添加节点')
            //刷新列表
            this.fetchData();
            //关闭表单
            this.dialogVisible=false;
       })
      },
  
      //更新
      update() {
        api.updateMenu(this.sysMenu).then(res=>{
        //给出提示
            this.tips(res.code==200,'修改节点')
            //刷新列表
            this.fetchData();
            //关闭表单
            this.dialogVisible=false;
       })
      },

      //封装提示信息
     tips(flag,msg){
        if(flag){
            this.$message.success(msg+'成功')
        }else{
            this.$message.danger(msg+'失败')
        }
    },

    }
  }
  </script>